Stabilized moisture curable polyurethane coatings
CA 1324857 C · Owner: Schoener, Thomas E. · Inventors: Blakley, Brent A.; Schoener, Thomas E.; Carlson, Gary M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a method for improving the pot life of moisture curable polyurethane coating compositions. Such enhancement is accomplished by blending with said coating composition a stabilizing amount of a stabilizing agent from the group of a mercapto compound a polyphenol characterized, by being reactable with an isocyanate group in the presence of a tertiary amine catalyst, and mixtures thereof. Stabilizing amounts of the stabilizing agent typically range from about 1% to 10% by weight. The enhanced pot life is realized even in the presence of significant quantities of water. -12-
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted November 30, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 30, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.